National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, United Kingdom.
Department of Forensic and Neurodevelopmental Science, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom.
Eur Psychiatry. 2020 Jun 29;63(1):e68. doi: 10.1192/j.eurpsy.2020.68.
We investigated whether adults with attention-deficit/hyperactivity disorder (ADHD) show pseudoneglect-preferential allocation of attention to the left visual field (LVF) and a resulting slowing of mean reaction times (MRTs) in the right visual field (RVF), characteristic of neurotypical (NT) individuals -and whether lateralization of attention is modulated by presentation speed and incentives.
Fast Task, a four-choice reaction-time task where stimuli were presented in LVF or RVF, was used to investigate differences in MRT and reaction time variability (RTV) in adults with ADHD (n = 43) and NT adults (n = 46) between a slow/no-incentive and fast/incentive condition. In the lateralization analyses, pseudoneglect was assessed based on MRT, which was calculated separately for the LVF and RVF for each condition and each study participant.
Adults with ADHD had overall slower MRT and increased RTV relative to NT. MRT and RTV improved under the fast/incentive condition. Both groups showed RVF-slowing with no between-group or between-conditions differences in RVF-slowing.
Adults with ADHD exhibited pseudoneglect, a NT pattern of lateralization of attention, which was not attenuated by presentation speed and incentives.
我们研究了注意力缺陷多动障碍（ADHD）患者是否表现出假性忽视——即偏向于左视野（LVF）分配注意力，从而导致右视野（RVF）的平均反应时间（MRT）减慢，这是神经典型（NT）个体的特征——以及注意力的侧化是否受呈现速度和激励的调节。
Fast Task 是一个四择一反应时任务，刺激在 LVF 或 RVF 呈现，用于研究 ADHD 成年患者（n=43）和 NT 成年患者（n=46）在慢/无激励和快/激励条件下 MRT 和反应时变异性（RTV）的差异。在侧化分析中，根据 MRT 评估假性忽视，MRT 是为每个条件和每个研究参与者分别计算 LVF 和 RVF 的。
ADHD 成年患者的 MRT 总体较慢，RTV 增加，与 NT 相比。在快/激励条件下，MRT 和 RTV 得到改善。两组均表现出 RVF 减慢，但 RVF 减慢在组间或组间条件间无差异。
ADHD 成年患者表现出假性忽视，即注意力的 NT 侧化模式，这不受呈现速度和激励的影响。
